Postal coding machine



FIG. 1 is a front, top and right side perspective view of a postal coding machine showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof; and

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a postal coding machine, as shown. 